US 12,310,657 B2
Equipment for crushing urinary stone
Soichi Ikuma, Akishima (JP); Eijiro Sato, Hachioji (JP); and Hiroki Kazuno, Kodaira (JP)
Assigned to Olympus Corporation, Tokyo (JP)
Filed by OLYMPUS CORPORATION, Tokyo (JP)
Filed on Feb. 18, 2022, as Appl. No. 17/675,382.
Claims priority of provisional application 63/155,337, filed on Mar. 2, 2021.
Prior Publication US 2022/0287774 A1, Sep. 15, 2022
Int. Cl. A61B 1/00 (2006.01); A61B 1/015 (2006.01); A61B 1/018 (2006.01); A61B 1/307 (2006.01); A61B 18/26 (2006.01); A61B 18/00 (2006.01)
CPC A61B 18/26 (2013.01) [A61B 1/015 (2013.01); A61B 1/018 (2013.01); A61B 1/307 (2013.01); A61B 2018/00511 (2013.01); A61B 2018/00982 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A medical device, comprising:
an insertion tube having an outer tube surface and an inner tube surface; and
a procedure tube movably disposed inside the insertion tube,
wherein the procedure tube includes a distal tip portion and an elongate portion located proximally relative to the distal tip portion,
wherein the distal tip portion has a distal end surface, a proximal end surface, and a circumferential side surface connecting the distal end surface to the proximal end surface,
wherein the proximal end surface of the distal tip portion is serrated,
wherein an outer diameter of the circumferential side surface is a first diameter, an outer diameter of the elongate portion is a second diameter, and the first diameter is larger than the second diameter,
wherein, when the distal tip portion of the procedure tube is positioned within the insertion tube, and
wherein a first distance is less than a second distance, where the first distance is between the inner tube surface of the insertion tube and the circumferential side surface of the distal tip portion of the procedure tube and the second distance is between the inner tube surface of the insertion tube and an outer peripheral surface of the elongate portion of the procedure tube.